To have clickable links over a partial area on the video use an anchor tag (or a button).
Then absolutely position it over the video so that the video controls are still useable.
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To have an entire videos area a clickable link just wrap it with an tag
Note: 
Accessibility issue - user controls play,pause,etc become unusable when making entire videos area clickable link. So IF users need the play/pause controls on a video DO NOT make the whole video a link , and DOUBLE DO NOT do this if there is audio. And ESPECIALLY DONT assume just because you are okay with this behavior that your customers will enjoy the lack of controls.
Though you may need to style, or reset styles, of tags so they work and behave as needed when wrapped around large block content.
Or use the onclick attribute or , create a click handler for a video that has it’s ID attribute set